Tide surge wallops West Seattle pump stations
Two wastewater pump stations in West Seattle are again operating normally after a freak tide surge forced water from Puget Sound into the sewer system, straining capacity at one station and causing a possible overflow at another.
It’s believed that a higher than normal tide combined with a strong low pressure weather system created a tide surge that pushed sea water into King County’s Barton Pump Station on the north side of the Fauntleroy ferry dock about 7:30 a.m.
The deluged Barton station forced high volumes of sea water and wastewater through a 6,250-foot pipeline to the county’s Murray Avenue Pump Station at Lowman Beach Park, where operators at King County’s South Treatment Plant in Renton detected a possible overflow shortly after 8 a.m.
Wastewater Treatment Division crews responding to the overflow alert reported that the tide was the highest they’d ever seen near the pump station. Crews are unable to determine at this time if any raw sewage overflowed from the inundated pump station into Puget Sound and will continue investigating.